Thursday, May 19, 2022

What Test Is Done For Hiv

What Does The Test Measure

How to Test for HIV?

HIV tests detect the presence of the HIV virus, HIV antigens, and/or HIV antibodies. If these substances are detected, the test returns a positive result for HIV.

There are three types of HIV tests available:

  • Antibody test: Antibodies are produced by the body after an HIV infection. It can take weeks for the body to produce antibodies, so HIV antibody tests can only detect HIV from 3 to 12 weeks after infection.
  • Antigen/antibody test: Antigens are foreign substances that activate an immune response. Antigens appear before the body produces antibodies, so HIV antigen/antibody tests can detect an HIV infection earlier than antibody tests, within 2 to 4 weeks of becoming infected.
  • HIV viral load test: An HIV viral load test looks for the quantity of HIV virus in the blood. In addition to detecting an HIV infection, viral load testing can also detect how much of the virus is in the blood. Although this type of testing can detect an HIV infection earlier than other HIV tests, its very expensive and is typically only used when someone has symptoms or a possible exposure to HIV.

How Reliable Is An Hiv Home

Licensed HIV tests that have been approved by national authorities are very reliable. On rare occasions they will produce a positive result which is then found to be negative known as a false positive test result.If you receive a positive result from your home test you should go to an HIV clinic as soon as possible for a confirmation test.If you have taken a postal test you will be invited to your nearest clinic when you receive your result. If you have taken a self-test the kit should include information about contacting your local clinic.Remember that it may take up to three months from the time of infection for traces of HIV to show up in an HIV test. The kit will provide you with more specific information about this window period.

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Preventing The Spread Of Hiv

People who suspect they have been exposed to HIV should still exercise caution to avoid HIV transmission during the window period.

They can do so in several ways:

  • Use a condom during sex
  • Reduce your number of sexual partners
  • Consider using pre-exposure prophylaxis , a daily medication that reduces your partners chances of getting HIV
  • Get tested for other STDs and ask your partners to do the same
  • Dont share drug needles with others

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Where Can I Get An Hiv Test

Depending on where you are in the world, there are a number of places that you can get tested for HIV. The best first step is to search online for “HIV testing, plus your location. This will generally give you a good idea of where to go, or at least give you a starting point.

If you have limited internet access, its always worth asking local sexual health charities or health professionals what is available in your area. They should be able to direct you to somewhere where you can test for free. The image below has some examples of the types of places that might offer HIV testing.

Introduction And Guiding Principles

Everything You Need to Know About Getting an HIV Test

A request was made by the Federal/Provincial/Territorial Committee on AIDS for the Public Health Agency of Canada to develop guidelines on HIV testing that reflect the realities facing care providers and their clients, as well as advances in HIV testing policy and practice. To inform the development of this guide, the Agency commissioned a literature review and consultations with key stakeholders, including people living with HIV/AIDS and other affected populations, academics, nurses, physicians, professional associations, non-governmental organizations, policy-makers, community workers, and legal and ethical experts. As a result, the recommendations outlined in the guide are based on the most up-to-date evidence and expert opinion.

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Getting Your Hiv Test Results

Most HIV test results are available within a week.

If the test result is negative, you may receive your results within a few days.

If the initial test result is positive, then additional testing to confirm the result needs to be performed in a reference laboratory and this can take up to a week to get a result.

Importance Of Hiv Testing

If you have the virus, finding out quickly means you can start treatment right away so you can feel better and live a long, full life. You can also take steps so you don’t pass HIV to other people.

Pregnant women should get tested because early treatment means you probably wonât pass it to your baby.

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Laboratory Methods For Diagnosis Of Hiv Infection In Infants And Children

The definitive diagnosis of HIV infection at any age requires diagnostic testing that confirms the presence of HIV. Serological testing identifies HIV antigen and/or antibody generated as part of the immune response to infection with HIV. In children older than 18 months of age, serological testing should be used in the same manner as in adults. However, maternal HIV antibody is transferred to the baby passively during pregnancy and then declines . Infected infants then go on to produce HIV antibody however, most commonly used HIV serological assays cannot distinguish between maternal HIV antibody and HIV antibody produced by the infant, making the interpretation of reactive HIV serological test results difficult . In order to diagnose HIV infection definitely in children aged less than 18 months, assays are required that detect the virus or its components . A range of laboratory-based techniques are available, and these are discussed in more detail in the following section.

What Happens When You Go For A Test

How to Test for HIV at Home | This Morning

Normally, testing involves taking a small sample of blood from your finger or your arm, or an oral swab. This is where you rub the testing pen along your gums to collect cells from your mouth.

How long it takes for HIV test results to come back will depend on the type of test you are taking. If youre taking a rapid test, you will be given your results within 20 minutes. Other types of tests will be sent to a laboratory and it may take between a few days and a few weeks for you to receive a final result.

Tests these days are very reliable, but if your result comes back positive, you should have a second confirmatory test to double check your result. If this is also positive, you will get an HIV diagnosis, after which you can start treatment.

Remember, HIV treatment these days is very effective and people with HIV can live long and healthy lives just like anyone else.

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What Kind Of Hiv Tests Are There

Rapid HIV tests give you results in about 20 minutes. Other tests take longer because they need to be sent out to a lab. HIV tests are usually painless you just gently rub the inside of your cheek with a soft swab. Sometimes youll give a blood sample for testing.

You can test yourself for HIV using an at-home HIV testing kit. With the OraQuick In-Home HIV Test, you swab your gums and test the sample yourself. You get results in 20 minutes. With the Home Access HIV-1 Test, you prick your finger to get a small amount of blood. You mail your blood sample to a lab, and get your results in about a week. At-home tests are totally anonymous youre the only person who will know the results. And both types of tests help connect you with counselors who can give you support and advice about treatment if you test positive.

If a rapid HIV test at a clinic or a home test shows that you have HIV, get a follow-up test to make sure the results are correct.

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Who Should Be Tested For Hiv And How Frequently

It is recommended that the consideration of HIV testing be made a component of routine care. In general, care providers should take an active approach to HIV testing, offering HIV testing to clients whether or not clients have asked for a test. In the provision of routine medical care, and in discussion with the client, care providers should consider whether there is a benefit to an HIV test.

HIV testing is associated with several advantages:

  • a negative test result is an opportunity for clients to take an active role in remaining HIV negative
  • the early detection of HIV, especially at the acute stage, can improve outcomes for individuals and prevent further transmission of HIV
  • detection at any stage of the disease, prior to wasting and dementia, is an opportunity to initiate lifesaving treatment and other related healthcare services
  • opportunities arise for conversations with clients about risk-reduction strategies

2.1.1 Testing recommendations

An in-depth comprehensive HIV behavioural risk assessment is not a requirement for offering an HIV test. An assessment that the client understands how HIV is transmitted, the implications of testing , and how to interpret the test results is sufficient.

For occasions when clients may not be able to accurately estimate their risk, the guide includes more detailed guidance in Appendix B for conducting rapid risk assessments and a more detailed technical review of HIV transmission risks can be found in Appendix C.

2.1.2 Couples testing

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Types Of Hiv Testing Services

4.5.1 Standard

The majority of healthcare venues carry out “standard” HIV testing. This means a tube of blood is collected in the clinic, hospital or physician’s office and sent to the medical laboratory along with a requisition ordering an HIV test. Standard testing can be done in any type of setting . Test results are generally available within one week.

4.5.2 Point-of-Care or rapid testing

How Confidential Are Hiv Test Results

10 things you need to know about HIV self

Your HIV status, like other medical conditions and test results, is protected by the HIPAA Privacy Rule and cannot be shared with friends, family, or employers without your written permission. Your HIV status may be shared with your healthcare providers who have a “need to know” in order to treat you. Also, in order to determine the incidence of HIV and to provide appropriate prevention and care services, all new cases of HIV are reported to state and local health departments.

Certain testing centers provide either anonymous or confidential HIV testing and counseling. You can also contact your state or local health department to find out where testing may be available.

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What About False Results

Some HIV tests have a very slight chance of giving you false results. A âfalse-positiveâ result means your test shows you have HIV when you donât. Tests may also give you a âfalse-negativeâ result. That means the test says you donât have HIV, but you do.

The rapid oral fluid test is more likely to give you a false-positive result than other tests. If you take a rapid oral test and get a positive result, the doctor will give you a blood test to confirm your diagnosis.

The HIV RNA or viral load test is not generally used to diagnose HIV. If you have this test done and get a positive result, the doctor may start you on HIV treatment, but you should always take an antibody test a few months later to confirm your diagnosis.

If you test positive: These tests are all screening tests for HIV. That means that if you take an HIV test and get a positive or even an unclear result, youâll need another blood test to confirm that you do or donât have the virus. The results of both tests together are more than 99% accurate. The tests used to confirm HIV infection are either the Western blot or indirect fluorescent antibody test. If your screening test went to a laboratory, they can do this additional testing on the same blood sample. But if you were tested in a community clinic or at home, youâll need to give an additional blood sample for follow-up.

Some Practices Dont Reduce Your Risk Of Hiv

Some people use unreliable methods to reduce their risk of HIV. These include:

  • Serosorting choosing your sexual partner based upon them having the same HIV status as you.
  • Strategic positioning where an HIV-negative partner penetrates an HIV-positive partner.
  • Withdrawal when the insertive partner pulls out before ejaculating .

None of these strategies are reliable, so you are at risk of HIV transmission.Having sex only with people who have the same HIV status can be very risky. For example, a person may think they are HIV-negative, but may have been exposed to HIV since their last test, or may never have been tested at all.

Using a combination of proven, reliable strategies like condoms, PrEP, and undetectable viral load is the best way to prevent HIV transmission.

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Hiv Testing Outside Of A Health Care Setting Or Lab

If you are tested outside of a health care setting or lab you will likely receive a rapid HIV test

  • If the test comes back negative, and you havent had a possible exposure during the previous 3 months, you can be confident you dont have HIV.
  • If your test result is positive, you should go to a health care provider to get follow-up testing. Counselors providing the test should be able to answer questions and provide referrals for follow-up testing as well. You can use the HIV.gov locator to find a provider near you.

Frequency And Timing Of Testing

HIV Home Test

After you start HIV treatment, not all lab tests will be conducted at every medical visit. Some will occur every few months. Others will depend on whether you are stable on HIV treatment and doing well. View this chart about the timing of various tests and talk to your provider about what is recommended for you.

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Get Tested Regularly If You Are At Greater Risk Of Hiv

If you are at greater risk of HIV get tested regularly.

Gay, bisexual, trans and other men who have sex with men should get tested every 3 months . This may vary depending on how many sexual partners you have during the year.

Talk with your doctor or sexual health specialist for advice. They can also provide information about how to reduce your risk for HIV and other STIs.

Where Can I Go For Hiv Testing

You can get tested for HIV and other STDs at your doctors office, a community health clinic, the health department, or your local Planned Parenthood health center. You might want to get your HIV test at a place that also has HIV counseling .

You can either get an anonymous” or “confidential HIV test, depending on the laws in the state that you live in. Confidential” testing means your name is on the test, and the results go in your medical records. Your doctors and insurance company may also see the results. If you test positive, your results are sent to your local health department so they know the rates of HIV in your area. But your results are protected by privacy laws, so nobody else can see them without your permission.

“Anonymous” testing means your name isnt on the test. Youll get an ID number that youll use to find out your results. Your results wont go in your medical records, and they wont be sent to your insurance company or the health department youre the only one who will know them.

STD testing, including HIV testing, isnt usually automatically part of your regular checkup or gynecologist exam you have to ask for it directly. Be honest with your nurse or doctor so they can help you figure out what tests are best for you. Dont be embarrassed: your doctor is there to help, not to judge.

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Is Hiv Testing Confidential

HIV testing can be confidential or anonymous.

Confidential testing means that your HIV test results will include your name and other identifying information, and the results will be included in your medical record. HIV-positive test results will be reported to local or state health departments to be counted in statistical reports. Health departments remove all personal information from HIV test results before sharing the information with CDC. CDC uses this information for reporting purposes and does not share this information with any other organizations, including insurance companies.

Anonymous testing means you do not have to give your name when you take an HIV test. When you take the test, you receive a number. To get your HIV test results, you give the number instead of your name.

The Healthcare Worker There To Help You

All You Need to Know About HIV Testing

Before you test, your healthcare worker will talk to you about your sexual health and why youve decided to test. This is to help them understand your situation so they can offer you the best services and advice.

Remember, the healthcare professional is not there to judge you. There will be nothing you can say that they havent heard before so be honest with them, and ask as many questions as you want. Thats what theyre there for.

You should never feel pressured to test. The results will be completely confidential but you should only go through with it if you want to.

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Why Should I Get Tested If I Am Pregnant

If you are pregnant, it is important to determine if you have HIV so you can be treated. Treatment of HIV-infected mothers during pregnancy, precautions at birth, and avoiding breast-feeding can minimize the risk of passing the infection from mother to child. If you are already taking HIV medications when you become pregnant, you should continue to do so during pregnancy and labor and delivery. If you are not taking HIV medications or have a high viral load during pregnancy, giving the antiretroviral drug zidovudine intravenously during labor and delivery and also to the newborn twice a day by mouth for 6 weeks reduces the rate of transmission from 25-33% to about 1-2%.

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